Safety device for elevators



J. MOSCHOS. SAFETY DEVICE FOR ELEVATORS. APPLICATION FILED J-ULY29fI92l.

Patented Aug. 1, 1922.

JOHN MOSCHOS, 0F DEMOIPOLIS, ALABAMA.

SAFETY DEVICE" roannnvnrons.

Lezaeee.

Application filed July 29, 1921.

To all whom it may concern:

Be it known that JOHN MosoHos, a citizen of the-United States of America, residing at Demopolis, in the county of Marengo and State of Alabama, has invented new and useful Improvements in Safety Devices for Elevators, of which the following is a specification.

The object of the invention is to provide safety cushioning means for passenger and other elevators as a means of protecting the occupants of the car in the event of the fall thereof through the breakage or disarrangement of the suspending devices and furthermore to provide means for this purpose which can be positioned and permanently occupy a relation with the car or cage adapting them to perform the intended function without in any way interfering with the equipment of the elevator in other respects and without requiring any modification in the construction or operation thereof; and with this object in view the invention consists in a construction and combination of parts of which a preferred embodiment is shown in the accompanying drawings, wherein Figure 1 is an elevation of an elevator equipment provided with a safety appliance embodying the invention.

Figure 2 is a plan view partly broken away of the bottom cushioned platform.

Figure 3 is a detail view of one of the supporting elements of the bottom platform.

Figure 4 is a similar view of one of the upper cushioning elements.

Figure 5 is a detail view of one of the car carrier buffers.

The apparatus consists of a yieldingly supported or cushioned platform 10 at the bottom of the elevator shaft, the angles of the platform being extended through slots 11 in tubular guides 1.2 which contain coiled cushioning springs 13 held under a moderate tension and adapted when a weight is suddenly applied to the platform as by the fall of the car or cage indicated at 14 to yield and thereby cushion the shock. At the upper ends of the coils 13 are arranged buttons 15 from which extend cables 16 passing through guide eyes 17 at the bottom and top of the car or cage and attached at their upper ends Specification of Letters Patent.

Patented Aug. 1, 1922. Serial No. Z188,368.

to buttons 18 arranged in operative relation with coiled cushioning springs 19 arranged in tubular guides 20, said guides being permanently secured to the building or frame work so that the springs 19 therein are subected to strain through the cables 16 when the springs 13 are compressed by the depression of the platform 10. In other words the overhead or upper cushioning devices including the springs 19 serve to reinforce those which are located in supporting relation with the platform 10, to minimize or absorb the shock or jar incident to the falling of the car or cage.

As an additional means of modifying the shock and hence the possibility of injuring the occupants of the car the latter is proyided at its bottom with a cushion which as illustrated in the drawing may consist of the bowed frames. 21 having coiled filler springs 22 and constituting a buffer for contact with the surface of the platform 10. It will be obvious that the combined effect of the several cushioning devices will be such as to absorb the jar incident to the checking of the movement of the car or cage and bring it to a state of rest with the minimum of shock to the occupants of the car so that the injury to passengers ordinarily resulting from an accident of this character may be practically eliminated.

Having described the invention, what is claimed as new and useful is 2- 1. A cushioning device for elevators having a spring supported platform arranged in the path of downward movement of the cage, the platform supporting springs being supplemented by overhead cushioning springs arranged at the upper end of the elevator shaft and connected therewith by cables extended parallel with the path of the cage.

2. A cushioning device for elevators having a spring supported platform arranged in the path of downward movement of the cage, buttons being connected with the upper ends of the platform supporting springs and supplemental reinforcing springs being arranged at the upper end of the elevator shaft and provided with terminal buttons connected with those of the platform supporting springs by cables extending parallel 105 with the path of movement of the elevator cage.

5 in the path of downward movement of the cage, buttons being connected With the upper ends 01 the platform supportingsprings and supplemental reinforcing springs being ture; arranged at the upper end of the elevator shatteonnected with those of the platform sup- ,n 3. A cushioning device for elevators havportin 1 ing zrspring su eperted pletiermwnrangerh vWitlnthe ,path of movement of the eleyator cage, arranged in tubular housings.

In testimony whereof he affixes his signaand provided with terminal buttons 10 g springs by cables extending parallelv the said supplemental springs being M JQHLTMOSGHOS. 

